Incinerator



June 10, 1930.

R. W. KRENZ INC INERATOR Filed Sept. 17, 1928 3 Sheets-Sheet 1 ig.1 1?

GI] UKDUU gwuentoz June 10, 1930. w KRENZ 1,762,579

INCINERATOR Filed Sept. 17, 1928 3 Sheets-Sheet 2 June 10, 1930.

R. w. KRENZ 1,762,579

INCINERATOR Filed Sept. 17, 1928 s Sheets-Sheet s Fig. 3

Patented June 10, 1930 PATENT OFFICE REINHOLD W. KRENZ, OF TOLEDO, OHIO INCINEBATOR Application filed. September 17, 1928. Serial No. 306,452.

This invention relates to an incinerator of the type adapted to be installed in the better class ofresidences, apartment houses and the like.

One object of my invention is to provide an incinerator in which wood, coal or similar fuel, as well as gas or oil, may be used to initiate or to assist the combustion of the garbage, special provision being made to prevent the incinerator from becoming clogged, thus insuring a good draft at all times. The gas burners are arranged in an improved manner both for drying or igniting the garbage and for burning off the fumes rising from the same.

Provision is also made for setting the incinerator within the base of the chimney after the latter is built, a clear space being left between the outer wall of the incinerator and the chimney wall, through which there is a continuous draft while the incinerator is in operation, thereby preventing the outer'wall of the incinerator from be- 7 coming overheated. 1

The Y invention also includes improved means for dumping the tin cans and other large pieces of incombustible material from the garbage chamber into the fire chamber, whence they may be easily removed by means of a shovel or the like.

The specific features of the invention, together with the objects and advantages thereof, will be more particularly explained in connection withthe accompanying drawings, which illustrate the preferred embodiment of the same.

In the drawings Figure 1 is a front elevation of the incinerator installed in a chimney.

* Fig. 2 is a horizontal section taken on the line 2-2 of Fig. 3.

Fig. 3 is a vertical section taken on the line 33 of Fig. 2.

Fig. 4 is a partial section, on an enlarged H scale, taken on the line 4-4 of Fig. 1.

Fig. 5 is an isometric view of the dumping grate, normally located between the garbage chamber and the fire chamber.

In the installation illustrated in the drawings, the chimney 10 is constructed with an opening in its base adapted to receive the mcmerator, which has an outer wall 11, preferably rectangular in shape. The wall 11 may be lined with asbestos, as indicated at 12, and the opening in the chimney is large enough to leave a clear air space 13 around the wall 11. Angle irons 14: are secured to the wall 11 so as to cover the space 13 at each side of the incinerator, ex cept for openings 15 at the bottom, which may be screened. After the incinerator is set in position, the space at the top may be closed by cement or plaster, as shown at 16. When the incinerator is thus set in position, and is in operation, there will be a continuous stream of cold air enter through each of the openings 15 and pass upwardly through the space 13 into the chimney fiue 17 thus preventing the incinerator wall 11 from becoming excessively hot.

Within the wall 11 near the bottom of the incinerator, there is secured an angle bar frame 18 on which rest the walls 19 of the fire chamber. The bottom of this chamber is formed by a grate 20 which also rests on the angle bar frame 18.

At the top of the fire chamber, the walls 19 are formed with flanges 21. A rectangw lar grate frame 22 rests on the flanges 21 and on a flange 21 formed on the front wall of the incinerator. A dumping grate 23, having comparatively large openings, is mounted within the frame 22. The side and rear walls 19 are continued upwardly above the flanges 21 to form walls 24 of the garbage chamber. The front wall 24 rests on the flange 21, the front side of the fire chamber being left clear to permit the introduction of fuel.

The walls 24 of the garbage chamber are in the form of gratings extending from top to bottom of the chamber to permit free access of air thereto. The walls 19 of the fire chamber, however, are solid except at the top and bottom of the chamber, where they are provided with openings 25. The solid portions of these walls may be either smooth or fluted. This construction of the walls 19 is for the purpose of retaining coal or similar fuel, while permitting a comparatively free current of air through the chamber.

The upper edges of the walls 24 are formed with outwardly extending toothed flanges 26 for holding said walls spaced from the outer wall 11 and permitting the flow of air upwardly outside of the garbage chamber and between the teeth of the flanges 26, when the garbage chamber is full. Angle bars 27 secured to the wall 11 above the flanges 26, serve to stiffen the wall 11 and to prevent garbage from dropping into the space between the garbage chamber and the outer wall. The outer wall may also be reinforced at the upper end by'an angle bar, as

indicated at 28, leaving a free passageway from the upper end of the incinerator into the chimney flue 17.

In order that gas, may be used as fuel, a number of gas burners 29 may be located at the front of the incinerator near the bottom of the fire chamber. In order to protect these burners from becoming clogged up by material whichdrops through the grate 23, a bar 30 extends across the front of the chamber above the burner outlets. Another gas burner 31 may be located above the front Wall 24, to be used when needed, for burningthe fumes which rise from garbage. or

As a rule, the garbage will be dropped into the incinerator through chutes leading from the upper part of the building to the flue 17. The front wall of the incinerator is also provided with a door 32 near the top through the smoldering which garbage may be thrown. A small door 33 is also provided for lighting the gas burners. There is also a door 34 in front of the fire chamber and an ash door 35 is provided for removing the ashes, which collect in a pan 36 beneath the grate 20.

The dump grate 23 is provided with comparatively large openings between the bars, through which the garbage may drop when it becomes dry and partially burned and its combustion will ordinarily be completed in the lower chamber. .If a portion is not completely burned, it may upper chamber through the door 32.

The grate 23 is provided with trunnions 37 mounted in bearings 38 formed on the frame 22. These trunnions are located at one side of the center line of the grate so as to provide an extra large opening, when the grate is dumped, to allow large cans and the like to drop into the lower chamber, from -which they may be removed 'by a shovel.

The trunnion 37 at the front side of the grate is formed with a counterweight 39 which tends to hold the heavier side of the grate against a lug 40 formed on the frame 22. This counterweight may also be used as a handle to dump the grate. One of the trunnions 37 is also formed with a lug 41 which is normally between the sidesof the material departure be returned to the.

bearing 38 so as to lock the grate against dumping. The grate, however, has a limited longitudinal movement which is suflicient to permit the lug 41 to be moved out of the bearing, thus unlocking the grate when it is desired to dump it. v

When the incinerator is in use, the garbage will be allowed to collect and to remain in the upperchamber to dry until it is convenient to dispose of it. The burners 29 arethen lighted, or a coal or wood fire may and upwardly through the grate 23 or through the gratings 24 or through the toothed flanges 26. The burner 31 may also be used, if necessary, to prevent any oflensive odors from escaping. Thus it will be seen that the incinerator will operate efficiently for all purposes. I 7

While I have shown and described in "considerable detail the preferredembodiment of the invention, it is apparent that the same may be considerably modified without any from the scope thereof as defined in the claims.

What I claim is 1. In an incinerator, the combination with the outer walls, of a fire chamber having walls within said outer walls and spaced therefrom, a garbage chamber above the fire chamber and having walls constituting a continuation of the walls of the fire chamber, the walls of said fire chamber being imperforate except at the top and bottom, where they have openings to permit air to flow therethrough, the walls of the garbage chamber consisting of gratings extending from top to bottom thereof, and means for preventing garbage from falling to permit a free flowof air therebetween.

'into the space between said chamber walls and the outer walls, said means being spaced from the upper edges of the chamber walls 2. In an incinerator, the combination of I a garbage chamber with a fire chamber therebeneath, a comparatively coarse dump grate between the two chambers and having trunnions disposed on a line at one side of its center so that the larger side of the grate may swing downwardly, and a lug on one of the trunnions normally engaging its bearing to prevent dumping of the grate, said grate being manually movable longitudinally to-release said lug and permit the grate to dump. I

, 3. In an incinerator, the combination of a.

grate and hold it against said lip, and a lug on one of the trunnions normally engaging its bearing to prevent dumping of the grate, said counterweight constituting a handle for moving the grate longitudinally to release said lug and dump the grate.

4. In an incinerator, the combination of a garbage chamber with a fire chamber therebeneath, outer walls surrounding said chambers and spaced therefrom to provide an air chamber, and bars secured to said outer walls to reinforce the same and overhanging the walls of the garbage chamber to prevent garbage from falling into the surrounding air chamber, said bars being spaced above the garbage chamber walls to permit a free draft through the air chamber.

In testimony whereof I have hereunto signed my name to this specification.

REINHOLD W. KRENZ. 

